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Leeches Didn't Always Suck Blood — Ancient Fossils Reveal They Swallowed Prey Whole
Learn about a 480-million-year-old leech fossil that revealed that ancient leeches didn’t have the biological components ...
Scientists have also long thought that the earliest leeches were bloodsuckers. All modern leeches, including species that do ...
A 430-million-year-old fossil has rewritten leech history, showing they are at least 200 million years older than previously ...
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